Here’s a quick tips for those of you using Leopard Spaces functionnality. If you want to move a window from one “space” to another simply drag the window to the right/left/top or bottom edge of the screen (depending to which “space” you want to put it in) just like if wanted to put it out of the screen and wait a second.

Spaces should automaticaly switch to the next “space” and the window still be under your cursor. Drop it there or reiterate to move it to another “space”.